SUPER MICRO Computer Supero, X7DWE Hardware Prefetch Available when supported by the CPU

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X7DWE User's Manual

CPU fetches both cache lines for 128 bytes as comprised if Enabled. The options are Disabled and Enabled.

Hardware Prefetch (Available when supported by the CPU.)

Set this option to Enabled to enable the hardware components that are used in conjunction with software programs to prefetch data in order to shorten execution cycles and maximize data processing effi ciency. The options are Disabled and Enabled.

Set Maximum Ext. CPUID=3

When set to Enabled, the Maximum Extended CPUID will be set to 3. The options are Disabled and Enabled.

Direct Cache Access (Available when supported by the CPU.)

Set to Enable to route inbound network IO traffi c directly into processor caches to reduce memory latency and improve network performance. The options are Disabled and Enabled.

DCA Delay Clocks (Available when supported by the CPU.)

This feature allows the user to set the clock delay setting from snoop to prefetch for Direct Cache Access. Select a setting from 8 (bus cycles) to 120 (bus cycles) (in 8-cycle increment). The default setting is 32 (bus cycles).

Intel <R> Virtualization Technology (Available when supported by the CPU.)

Select Enabled to use the feature of Virtualization Technology to allow one platform to run multiple operating systems and applications in independent partitions, creat- ing multiple "virtual" systems in one physical computer. The options are Enabled and Disabled. Note: If there is any change to this setting, you will need to power off and restart the system for the change to take effect. Please refer to Intel’s website for detailed information.

Intel EIST Support (Available when supported by the CPU.)

Select Enabled to use the Enhanced Intel SpeedStep Technology and allows the system to automatically adjust processor voltage and core frequency in an effort to reduce power consumption and heat dissipation. The options are Enabled and Disabled. Please refer to Intel’s website for detailed information.

C1 State Mode (Available when supported by the CPU.)

Select Disable to disable the Standard C1 Halt State which will partially turn off the CPU internal clocks to conserve energy and prevent system overheating when the OS is idle. Select Enable to use the Enhanced C1 Halt State to lower the CPU clock frequency and the supply voltage before turning off the clocks.

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USER’S Manual Manual Revision Release Date April 9 Manual Organization About This ManualConventions Used in the Manual Page Preface Table of Contents Troubleshooting Table of ContentsBios AppendicesChecklist OverviewEurope Contacting SupermicroHeadquarters Asia-PacificX7DWE Image X7DWE Motherboard Layout X7DWEConnector Description Jumper Description Default SettingX7DWE Quick Reference Chipset Motherboard FeaturesMemory Expansion SlotsOnboard I/O Acpi FeaturesDimensions OtherSystem Diagram Intel 5400 MCH North Bridge Chipset OverviewIntel 631xESB/632x ESB I/O Controller Hub-ESB2 South Bridge Special Features PC Health MonitoringMain Switch Override Mechanism Acpi FeaturesSlow Blinking LED for Suspend-State Indicator CPU Overheat LED and ControlExternal Modem Ring-On Power SupplyWake-On-LAN WOL Super I/O Page Static-Sensitive Devices PrecautionsUnpacking Processor and Heatsink Installation Installing an LGA771 ProcessorPage Installation of the Heatsink CEK Heatsink InstallationMounting the Motherboard in the Chassis Dimm Installation Memory InstallationMemory Support Installing and Removing DIMMs Possible System Memory Allocation & AvailabilityControl Panel Connectors/IO Ports Back Panel Connectors/IO PortsJF1 Header Pins Front Control PanelNMI Button Power LEDFront Control Panel Pin Definitions NMI PWR LEDNIC1/NIC2 LED Indicators HDD LED NIC1 LED NIC2 LEDPower Fail LED Overheat OH/Fan Fail LEDReset Button Power ButtonATX Power Connector Connecting CablesProcessor Power Connector Universal Serial Bus USB Chassis IntrusionFan Headers VGA ConnectorVGA Serial Ports ATX PS/2 Keyboard and PS/2 Mouse PortsCOM1 COM2 Wake-On-LAN Power LED/SpeakerWOR GLAN1 GLAN2 Glan 1/2 Giga-bit Ethernet PortsSgpio Headers GLAN1 GLAN2 SGPIO-1 SGPIO-2Power SMB I2C Connector SMB PWR SMBEnabled Jumper SettingsGlan Enable/Disable Explanation JumpersWatch Dog Enable/Disable Cmos ClearVGA Enable/Disable I2C Bus to PCI-X/PCI-Exp. SlotsGlan LEDs Onboard IndicatorsOnboard Power LED LEDLED5 CPU1VRM OH CPU VRM Overheat LED IndicatorsLED6 CPU2VRM OH Floppy Connector StepSerial ATA Ports Simlp Ipmi SlotIDE Connector Before Power On Troubleshooting ProceduresNo Power Memory Errors Losing the System’s Setup ConfigurationNo Video Frequently Asked Questions Technical Support ProceduresQuestion How do I update my BIOS? Returning Merchandise for Service Question Whats on the CD that came with my motherboard?How To Change the Configuration Data System BiosIntroduction Main Bios Setup Running SetupPress the Delete key to enter Setup System Time Main Bios Setup MenuBios Date System DateCHS Format TypeLBA Format Ultra DMA Mode LBA Mode ControlTransfer Mode Native Mode OperationSata Ahci Enable Sata Controller Mode OptionSerial ATA Sata RAID Enable ICH RAID Code BaseAdvanced Setup Boot FeaturesPower Loss Control Power Button BehaviorEFI OS Boot Resume On Modem RingMemory Cache PCI Configuration Advanced Chipset Control Intel VT for Direct I/O VT-d Demand Scrub High Precision Event Time Crystal Beach FeaturesRoute Port 80h Cycles to USB FunctionAdvanced Processor Options DCA Delay Clocks Available when supported by the CPU Hardware Prefetch Available when supported by the CPUDirect Cache Access Available when supported by the CPU Intel Eist Support Available when supported by the CPUDevice Configuration DMI Event Logging Console Redirection Fan Speed Control Modes Hardware Monitor LogicVoltage Monitoring System Event Logging Abled Bios Post ErrorsIpmi Specification Version Clear System Event LoggingAbled OS Boot Watch Dog System Event Log/System Event Log List ModeBios Post Watch Dog Timer for Loading OS MinutesSecurity Realtime Sensor DataSet Supervisor Password Supervisor Password IsUser Password Is Set User PasswordBoot Boot Priority Order/Excluded from Boot OrdersExit Appendix a Post Error Beep Codes Recoverable Post Error Beep CodesPage Appendix B Installing the Windows OS Page Appendix C Installing Other Software Programs and Drivers Configuring Supero Doctor Supero Doctor III Interface Display Screen-II Remote Control